package com.example.demo.Service;

import com.example.demo.model.Book;
import com.example.demo.model.User;

import java.util.List;
import java.util.Map;

public interface BookService {
    public Integer addBook(Book book);
    public Integer deleteBook(Integer book_id);
    public Integer modifyBook(Book book);
    public List<Book> getBookList();
    public  List<Map<String,Integer>>getBookCountByCategory();


}
